Sig Hummer Conversion
05-04-2006, 10:50 PM
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Sig Hummer Conversion
Need a little help from you electric experts. I am in the process of building a Sig Hummer kit. This plane was designed to fly with an .049 glow engine. It's advertised specs are as follows. The Hummer has a 34" wingspan and a wing area of 212.5 sq. in. It's advertised weight with standard radio gear is 20 to 26 oz. I have micro gear so I am expecting to come in closer to the 20 oz range. I have in my posession a 640MAH 3 cell lipo and a 10A brushed ESC.(donated by a friend) My question is, Can I buy a brushed motor that will work with that batt and esc that will be sufficient to fly the Hummer? I have considered getting a whole new brushless setup, but I would like to utilize the equipment that I have if possible. This will by my first electic setup, so any comments would help. I also need a suggestion on a prop as well. Flying style will be sport and light aerobatics, definitely no attempt at 3D with this rig.
Thanks,
Brian
Thanks,
Brian
05-08-2006, 12:17 PM
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RE: Sig Hummer Conversion
Brian,
I'm no expert , matter of fact i'm new to electrics but i have a couple of ideas. I have a 1/2a Lanier Shrike that i converted to electric. I put an E-flight park 370 outrunner up front with a 11.1 li-po. It weights 12oz with a 1050mah pack. With a 7x5E prop, it will launch vertically out of you hand and fly very fast. With a 6.5x6......It's just about fun than I can stand. I am about to drop a Little Screamer park jet in it and I'm sure it will be considerably faster. These LS motors are tiny, less than an oz, and they are unbelievable. About $50, tech support is great and I highly recommend it or a LS purpule peril for more static thust.
I flew a Sig Hummer about 25 yrs ago with a Tee dee 09. I cant see your Hummer coming anywhere close to 20oz. I'm guessing more like 12-15ozs with a LS motor and a 680 pack. Be prepared for a shock if you go with this set-up. It will test your skills.
Grodus
I'm no expert , matter of fact i'm new to electrics but i have a couple of ideas. I have a 1/2a Lanier Shrike that i converted to electric. I put an E-flight park 370 outrunner up front with a 11.1 li-po. It weights 12oz with a 1050mah pack. With a 7x5E prop, it will launch vertically out of you hand and fly very fast. With a 6.5x6......It's just about fun than I can stand. I am about to drop a Little Screamer park jet in it and I'm sure it will be considerably faster. These LS motors are tiny, less than an oz, and they are unbelievable. About $50, tech support is great and I highly recommend it or a LS purpule peril for more static thust.
I flew a Sig Hummer about 25 yrs ago with a Tee dee 09. I cant see your Hummer coming anywhere close to 20oz. I'm guessing more like 12-15ozs with a LS motor and a 680 pack. Be prepared for a shock if you go with this set-up. It will test your skills.
Grodus
05-15-2006, 11:06 PM
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RE: Sig Hummer Conversion
Well, here she is. 1750KV brushless and 15A speed controller are on the way. Finished weight of airframe with servos installed is 10.8 oz. I cant wait to get her in the air. I will be watching impatiently for the big brown truck.
Excuse the poor quality pictures. I spent the camera money on airplanes
Brian[8D]
Excuse the poor quality pictures. I spent the camera money on airplanes
Brian[8D]
